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raster scanning

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raster scanning [′ras·tər ¦skan·iŋ]
(electronics)
Radar scan very similar to electron-beam scanning in an ordinary television set; horizontal sector scan that changes in elevation.


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Hudson's scanner's sweep times are measured in nanoseconds, not milliseconds, and it is capable of vector scanning techniques, as opposed to raster scanning, a capability that is unique to all exiting mechanical scanners.
This speed will allow precise high-speed scanning in two dimensions and will provide omni-directional reading of 1D and stacked bar-codes, as well as 2D raster scanning for matrix codes.
The challenge was that this meant getting away from a raster scanning pattern and breaking new ground for imaging systems that order the picture elements in a completely different sequence.
 
 
 
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